Moisture-absorbing smoking pipe



March 11, 1952 o, wm 2,588,447

MOISTURE-ABSORBING SMOKING PIPE Filed Oct. 25, 1946 ANDREW o. m/vouy Patented Mar. 11, 1952 otureo stares rarest GFFEiCE This invention relates to smoking pipes, and more particularly to a smoking pipe of the type having means for filtering moisture out of the tobacco smoke as it is drawn through the pipe.

A main object of the invention is to provide a novel and improved smoking pipe of simple construction which provides double filtering action of smoke drawn from the pipe bowl and which is provided with means for removing moisture from the smoke, said means being easy to remove and not being subject to clogging.

A further object of the invention is to provide an improved smoking pipe of the filter type, said pipe being inexpensive to manufacture, easy to clean and neat in appearance.

Further objects and advantages of the invention will become apparent from the following description and claim, and from the accompanying drawings, wherein:

Figure 1 is a side elevational View of a smoking pipe constructed in accordance with the present invention. 2

Figure 2 is a vertical longitudinal cross-sectional view of the smoking pipe shown in Figure 1.

Figure 3 is a top plan view of the pipe of Figure 1 Referring to the drawings, 5 l designates a pipe according to this invention, said pipe comprising a bowl member l2 having secured thereto a stem member l3. Bowl member i2 is formed with a tobacco-receiving cavity it whose lower portion communicates by a horizontal passage 5 with a horizontal bore it enlarged in diameter relative to passage 55. Removably positioned in core it is a porous cylindrical wad of material H which functions as a filter for tobacco smoke passing through bore it. A screw-threaded end plug Iii is secured in the end of bore it which provides access to said bore for removal and replacement of filter wad ll.

Formed in the rear portion of bowl member I2 is a vertical bore #9 which intersects horizontal bore ii and in which is positioned a removable porous filter wad 253 similar to wad ll. A screwthreaded end plug 22 secured in the lower end of bore 19 provides access to said bore for removal and replacement of wad 29.

Formed in the upper rear portion of bowl member 52 and communicating with bore i9; is a cylindrical horizontal recess 22 axially aligned with the smoke bore 23 of stem member it. Recess 22 communicates by a reduced portion lid with a vertical bore 25 formed in bowl member i2 behind the tobacco-receiving cavity Id. Bore 25 contains a removable absorbent wick 25 which absorbs moisture from tobacco smoke coming in contact therewith. Said moisture collects in the lower portion of bore after wick 26 becomes saturated. A. screw-threaded end plug 2? is secured in the top opening of bore 25, said plug 27 being removable for providing access to the bore when wick 26 is to be removed for replacement when the bore 25 is to be cleaned out. Stem member it is formed with a reduced end 28 which is irictionally secured in bore 22. Formed in the inner end portion of stem i3 is an enlarged bore communicating with smoke bore 23. Secured to the inner end of stem member !3 is a sleeve 35 which projects axially through cylindrical recess 22 and reduced bore portion 2 and into vertical bore 25. Sleeve is substantially less in outer diameter than recess 22 and reduced bore portion 2t, whereby clearance is provided for smoke to pass forwardly from bore it toward wick 26 and into the open end of sleeve 35, the smoke being relieved of moisture by contact with wick and then passing into the open end of sleeve i323 toward chamber 29 and smoke bore 23.

It will be Seen that wads i? and 28 provide a double filtering action to remove solid particles and a certain amount of moisture from the tobacco smoke, and that any residual moisture in the smoke is removed by absorbent wick 26. The resultant smoke in smoke bore 23 is thus maintained substantially dry and is cooled substantially by its passage through the various bores and passages leading from tobacco cavity Hi to smoke bore 23.

While a specific embodiment of a smoke-filtering tobacco pipe has been disclosed in the foregoing description, it will be understood that various modifications within the spirit of the invention may occur to those skilled in the art. Therefore it is intended that no limitations be placed on the invention other than as defined by the scope of the appended claim.

What is claimed is:

A smoking pipe adapted for removing moisture and foreign particles from smoke passing therethrough comprising a bowl member having a tobacco-burning cavity therein, a first bore com municating with said cavity adjacent the bottom thereof and extending horizontally rearward therefrom, a second bore communicating with said first core at a point remote from said cavity and extending perpendicularly upward therefrom,

filtering means within said first and second bores for removing foreign particles out of smoke passing therethrough, a recess communicating with said second bore at a point remote from said first bore and extending in a parallel superimposed relation to the latter, there being a vertical bore in said bowl member adjacent one end of said recess and in communication therewith, an absorbent wick in said vertical bore for removing the moisture from the smoke, an elongated stem member having an axial bore therethrough and adapted to be attached at one end to said bowl member so that said axial bore is in communication with the other end of the recess of said bowl member and co-extensive therewith, and means carried by said stem member and positioned in said recess for reversing the flow of smoke therethrough, whereby when said pipe is in use the smoke is drawn from said tobacco cavity through said first and second bores to the recess and is caused to flow through the latter to said vertical bore and then reversely through 4 said means carried by said stem member and said axial bore consecutively for discharge.

ANDREW O. WINDEN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 10 Number Name Date 812,351 Moloney Feb. 13, 1906 937,073 Irving Oct. 19, 1909 2,183,658 Schnaier Dec. 19, 1939 2,300,800 Owen Nov. 3, 1942 2,318,639 Sibert May 11, 1943 FOREIGN PATENTS Nun'ber Country Date 5,308 Great Britain of 1889 

